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What are the primary colours of light?
What happens when light changes direction when passes from one transparent medium to another?
Light is composed of waves and particles called:
When a light travels from a more dense material such as glass to a less dense material such as air, the light ray refracts:
When a light ray refracts from air to water, the angle of refraction is:
The visible spectrum of light from the longest to shortest wavelength is:
The speed of light in a vacuum is:
A transparent object with flat surfaces that is used to separate the visible light spectrum into its different colours is called a:
An upside down image is called:
An example of a diverging lens that spreads light rays is the:
Angle between incident ray and normal ray is called angle of
An instrument which enables us to see things which are too small to be seen with naked eye is called
A tube containing two or more plane mirrors inclined at certain angles to each other is called a
If light ray strikes a surface at right angle , it is reflected along
Shadows are formed due to way of light which always travel in
A rainbow colored disc was given by
The band of colored light which make up white light is called
Total internal reflection of light is possible when the light enters from
If there were no atmosphere , the length of the day on the earth will